On the electrical characteristics of complementary metamaterial resonators

Bonache, Jordi; Gil, Marta; Gil, Ignacio; García‐García, J.; Martín, Ferran

doi:10.1109/lmwc.2006.882400

Cited by 238 publications

(144 citation statements)

References 12 publications

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“…L vp and C vp are achieved by a stub connected to the ground by vias, and CSRR etched on the ground plane realizes C, C c and L c . To find the dimensions of the layout, each part is simulated individually in HFSS, and their parameters are extracted using the method in [25] for CSRR and the procedure introduced in [26] for other parts.…”

Section: Parameter Extractionmentioning

confidence: 99%

Compact Dual-Wideband Bandpass Filter Using CSRR Based Extended Right/Left-Handed Transmission Line

Fathi¹,

Atlasbaf²,

Forooraghi³

2018

PIER C

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Abstract-In this paper a miniaturized dual wideband bandpass filter is designed by the modified extended composite right/left-handed transmission line (ECRLH-TL) under balanced conditions in each right/left-hand passbands. A novel equivalent circuit is proposed to provide the design and an implementation of ECRLH unit-cell by means of the complementary, split ring resonator (CSRR) on the ground plane. Since CSRR is utilized as an alternative to implementing one of the resonators of ECRLH unit-cell, the size and complexity of the structure can be consequently reduced. An example of a dual band pass filter with 3 dB frequency bands from 3.2 to 4.8 GHz and from 6 to 7 GHz is investigated. There is a good agreement among circuit, electromagnetic simulations and measured results in both passbands. The measured insertion loss is better than 0.5 and 1 dB in first and second bands central frequency, respectively. The group delay which is an important factor in wideband communications is about 0.62 ns and 0.71 ns, respectively, in the first and second band central frequencies. The final dimensions of the miniaturized filter are reduced to 8.88 mm × 8.18 mm.

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Section: Parameter Extractionmentioning

confidence: 99%

Compact Dual-Wideband Bandpass Filter Using CSRR Based Extended Right/Left-Handed Transmission Line

Fathi¹,

Atlasbaf²,

Forooraghi³

2018

PIER C

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“…Some of them, shown in Figures 4 and 5, are split-ring resonators (SRR), stepped impedance resonators (SIR), ring resonators, open complementary splitring resonators (OCSRR), broadside coupled split-ring resonators (BC-SRR), nonbianisotropic split-ring resonators (NB-SRR), double slit split resonators (DSSRR), omega particles, and chiral particles [29][30][31][32][33]. Omega and chiral particles ( Figure 5) couple electric and magnetic fields, which may result in bianisotropic metamaterials.…”

Section: Metamaterialsmentioning

confidence: 99%

Metamaterials for Microwave Radomes and the Concept of a Metaradome: Review of the Literature

Özis

Osipov

Eibert

2017

International Journal of Antennas and Propagation

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A radome is an integral part of almost every antenna system, protecting antennas and antenna electronics from hostile exterior conditions (humidity, heat, cold, etc.) and nearby personnel from rotating mechanical parts of antennas and streamlining antennas to reduce aerodynamic drag and to conceal antennas from public view. Metamaterials are artificial materials with a great potential for antenna design, and many studies explore applications of metamaterials to antennas but just a few to the design of radomes. This paper discusses the possibilities that metamaterials open up in the design of microwave radomes and introduces the concept of metaradomes. The use of metamaterials can improve or correct characteristics (gain, directivity, and bandwidth) of the enclosed antenna and add new features, like band-pass frequency behavior, polarization transformations, the ability to be switched on/off, and so forth. Examples of applications of metamaterials in the design of microwave radomes available in the literature as well as potential applications, advantages, drawbacks, and still open problems are described.

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“…As discussed in [9,10], CSRRs behave as electrical dipoles that can be excited by axial electric fields and exhibit negative permittivity upon their resonance. Typically CSRRs are used for the synthesis of compact planar filters or to improve the performance of existing ones.…”

Section: Aggressive Space Mapping Implementationmentioning

confidence: 99%

“…In order to infer a relationship between the response of the full-wave simulator and the circuit model, three distinct characteristic frequencies must be identified [9,10,12]; the transmission zero frequency f z , the reflection zero frequency f 0 , and the frequency f p providing −90 • phase shift for S 21 . Based on these characteristic frequencies, and after some derivation, we can arrive at the following expression for the lumped elements [11] …”

Section: Aggressive Space Mapping Implementationmentioning

confidence: 99%

“…In order to characterise the initial CSRR dimensions, we employ expressions given in [9,14]]. This approach requires fixing c, s (the CSRRs ring width, split width) to a reasonable value and linking the transmission line length l to r (the CSRRs † Due to hyper-sensitivity of the reflection zero frequency to small variations in the geometry it is recommended to using traditional transmission line equations to extract the electrical parameters L, C so as to ensure a stable ASM algorithm.…”

Section: Aggressive Space Mapping Implementationmentioning

confidence: 99%

See 1 more Smart Citation

Quasi-Newton Model-Trust Region Approach to Surrogate-Based Optimisation of Planar Metamaterial Structures

Bradley

2013

PIER B

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Abstract-A novel implementation of aggressive space mapping (ASM) for the automatic layout synthesis of planar metamaterial structures is outlined in this article. Specifically, we employ a model-trust region optimisation approach to significantly reduce the computational burden associated with the direct optimisation of highfidelity models. A Visual Basic for application (VBA) link to a commercial full-wave electromagnetic (EM) solver is created, to ensure that the automated Matlab-based platform has complete control of the design and analysis of the entire ASM process. The validity and efficiency of our approach is demonstrated with examples of complementary split-ring resonator (CSRR)-loaded transmission lines, comparing both modified and unmodified version of the quasi-Newton iteration within the ASM framework.

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On the electrical characteristics of complementary metamaterial resonators

Cited by 238 publications

References 12 publications

Compact Dual-Wideband Bandpass Filter Using CSRR Based Extended Right/Left-Handed Transmission Line

Compact Dual-Wideband Bandpass Filter Using CSRR Based Extended Right/Left-Handed Transmission Line

Metamaterials for Microwave Radomes and the Concept of a Metaradome: Review of the Literature

Quasi-Newton Model-Trust Region Approach to Surrogate-Based Optimisation of Planar Metamaterial Structures

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